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| Rocha, Luiz Carlos Dias; Carvalho, Geraldo Andrade. |
| The work’s aim was to evaluate the effects of some pesticides on Trichogramma pretiosum Riley, using the adapted IOBC standard methodology. A fully randomized experimental design, with ten treatments and four replicates, was utilized. The experimental plot was a cage with parasitoids exposed to fresh and dry pesticides residues. The following compounds were evaluated: (g a.i. L-1 water): lufenuron (0.04), triflumuron (0.15), imidacloprid (0.28), cyromazine (0.11), pirimicarb (0.25), methoxifenozide (0.12), abamectin (0.018), acephate (0.75) and esfenvalerate (0.019). Distillated water was used as control. The capacity of parasitism, percentage of emergence and the sex ratio of T. pretiosum were evaluated. All pesticides, except cyromazine, affected the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.00.00.00-4 Ciências Agrárias parasitóide de ovos; Controle biológico; Seletividade 5.00.00.00-4 Ciências Agrárias. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1825 |
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| Giordani, Glaucia Maria Rojas Cabrini; UEM; Santos, Humberto Silva; UEM; Scapim, Carlos Alberto; UEM; Constantin, Jamil; UEM; Callegari, Osni; UEM. |
| Evaluation of herbicide selectivity on transplanted lettuce cv. Elisa was undertaken in Maringá PR Brazil, from April through June, 1998. Experiment consisted of randomized blocks in a split plots scheme with four replications. The plots (6.3m x 1.2m) were divided into three subplots: one central subplot received herbicide treatments and the two lateral subplots were controls. Herbicides applied to pre-transplanted lettuce and evaluated were metolachlor, oxadiazon, oxyfluorfen, pendimethalin, thiobencarb and trifluralin; phenoxaprop-p-ethyl + clethodin, fluazifop-p-butyl, ammonium gluphosinate and imazethapyr were applied to post-transplantation culture. The experimental area was kept free from weeds during the whole period. Four to five weekly visual... |
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Palavras-chave: 5.00.00.00-4 Ciências Agrárias Lactuca sativa L.; Alface; Herbicidas; Seletividade 5.00.00.00-4 Ciências Agrárias. |
| Ano: 2000 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/2862 |
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